Batman is best hero. Though spiderman is the only hero I've seen who got his **** together and realized that to be a hero he had to put his own dreams and rules behind and do what had to be done to save his city. Ye, I was pretty mad at Superman in the newest movie when he sat down like the bitch he is and cried after killing 1 dude, while millions had died around him.

inb4 they are different in the comics ... I don't care, I don't read comics.

there's a difference, though... people were dying around him but he was directly responsible for this death. He was the killer. I liked it.
Also, watch Superman Vs The Elite for more about Superman and killing.